package com.example.machine.interceptor;

import com.example.machine.constant.Constants;
import com.example.machine.model.UserInfo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: Home-pc
 */
@Slf4j
@Component
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        log.info("登录拦截器校验");
        HttpSession session = request.getSession();
        UserInfo userInfo = (UserInfo) session.getAttribute(Constants.SESSION_USER_KEY);
        if(userInfo != null && userInfo.getId()>=0){
            return true;
        }
        response.setStatus(401);//401 表示未认证登录
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        log.info("目标方法执行后");
    }

}
